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ETCR2900B Earth Resistance Online Detector

Main Functions
On-line Monitoring Of Grounding Resistance, Grounding Voltage
Earth Resistance Measurement Range:0.01Ω~2000Ω
Earth Voltage Measurement Range:AC 0V~600V
Communication Mode: RS485 communication,4G communication
Setting Alarm Threshold
Setting Monitoring Interval
    Product Introduction
    ETCR2900B Earth Resistance On-line Detector, also known as earth resistance remote on-line tester, contact type earth resistance on-line detector, which is used for remote monitoring the earth resistance and earth voltage on-line. The tester adopt with simple two-wire method or precision three-wire method to test earth resistance, and the average value rectifier method is used to test the earth voltage and monitor it on-line in real time. The detector with RS485 communication and 4G communication, User can conduct secondary development, form a network, and realize remote multi-point on-line monitoring, etc. according to the provided MODBUS communication protocol.It is suitable for power facility grounding, highway equipment grounding, meteorological lightning protection grounding, communication base station grounding, railway facility grounding, construction warehouse grounding and electrical equipment grounding, etc.
    ETCR2900B Earth Resistance On-line Detector has LCD display, which can view the earth resistance value on site, set the alarm threshold value through the tester button, set the monitoring interval, with sound and light alarm prompt. The detector with guide rail mounting structure, which is particularly convenient for installation.
    1. The detector adopt with simple two-wire method or precision three-wire method to test the earth resistance, and average rectifier method to test the earth voltage.
    2. RS485 communication and 4G communication.
    3. Setting Alarm Threshold
    4. Setting Monitoring Interval
    5.The detector with guide rail mounting structure, which is particularly convenient for installation.
    Technical Parameter
    1.Measurement Range & Accuracy
    Measurement Function Measuring Range Accuracy Resolution
    Earth Resistance 0.01Ω~20Ω ±2%rdg±3dgt
    (Auxiliary earth resistance 100Ω±5%, earth voltage <10V)
    0.01Ω
    0.1Ω~200Ω 0.1Ω
    1Ω~2000Ω
    Earth Voltage 0V~600V AC ±2%rdg±3dgt 1V
     
    2.Technical Specifications
    Power Supply Standard: 12V-24V DC (± 1V DC), 400mA Max (External power supply)
    Display Mode 4-digit LCD display
    LCD Size LXW 47mm×28.5mm
    Measurement Mode Precision three-wire measurement, simple two-wire measurement
    Measure Earth resistance: rated current transformer method, measuring current 11mA Max, 128Hz;
    Earth voltage: average rectification
    Earth Resistance Measurement Range 0.01Ω~2000Ω
    Earth Voltage Measurement Range AC 0V~600V
    Data Mode Average value
    Measurement Instruction LCD countdown indicator during measurement
    Measurement Time Earth voltage: about 2 times/second; earth resistance: about 30 seconds/time
    Number Of Measurement More than 10,000 times
    Cable Voltage Measurement of earth voltage: measurement below AC 600V
    Tester Interface Plug-in terminal block: 9-pin terminal block
    Communication Mode RS485 communication; 4G communication
    Measurement Range Gear Shift Automatic shift
    Memory 99 groups, with a small number flashing and displaying the "99" symbol on screen to indicate that the storage is full
    Interval Time Automatic monitoring interval setting range: 1~999 hours
    Data Access Data access function: ”MEM" symbol display
    Overflow Display Over-range overflow function: “OL” symbol display
    Power Consumption Standby: 25mA Max, measurement: 400mA Max
    Alarm Prompt Sound and light alarm
    Alarm Setting Detector panel button setting or Background software(developed) setting
    Alarm Threshold Setting Range Resistance: 0Ω~2000Ω
    Low Power Supply Voltage Indication When the power supply voltage is lower than 11V, the low power supply voltage symbol is displayed to remind the power supply to be replaced.
    Detector Size 130mm×90mm×54mm
    Weight About 380g
    Overload Protection During testing the earth resistance: AC 280V/3 seconds between the ports of E-P and E-C
    Insulation Resistance Above 10MΩ (500V between the circuit and the housing)
    Withstand Voltage AC 3700V/rms(Between the circuit and the housing)
    Electromagnetic Characteristic IEC61000-4-3, Wireless frequency electromagnetic field≤1V/m
    Suitable Safety Regulation IEC61010-1, IEC1010-2-31, IEC61557-1,5, IEC60529(IP54), Pollution level 2, CAT Ⅲ 300V
    Working Temperature & Humidity -10℃~40℃;Below 80%RH
    Storage Temperature & Humidity -20℃~60℃;Below 70%RH
    Model comparison
    Product Picture Product Model Name Resistance Range Voltage Range LCD Displayer Alarm Function Power Supply Communication Metod
    ETCR2900 Earth Resistance Online Detector 0.01Ω~2000Ω 0~600V AC Yes Yes DC 12V RS485
    ETCR2900B Earth Resistance Online Detector 0.01Ω~2000Ω 0~600V AC Yes Yes DC 12V RS485
    4G
    Data download
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Guangdong ETCR Electronic Technology CO.,Ltd
Our corporate focuses on the research, development, and production of intelligent power testing and control instruments; and also provides OEM service.
Guangdong ETCR Electronic Technology CO.,Ltd
Our corporate focuses on the research, development, and production of intelligent power testing and control instruments; and also provides OEM service.

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